The Case of the Missing
Twentysomethings

There's a big new network-TV mystery this fall, and it has much of Hollywood buzzing. But even the geniuses over at "CSI" have little hope of cracking the case... of the missing twentysomething viewers.

With the fall-television season under way and networks pulling out their most promising new shows, the first Nielsen numbers are in for the six major broadcast networks -- and they show a surprising 12% drop in viewership in the critical 18-to-34 age group. The whole thing is causing quite a stir, because these numbers...